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UNDERGROUND LUNCH & LEARN
September 26, 2018 @ 12:00 pm - 1:00 pmFree, lunch will be provided
Tunnel Boring Machines in Urban Soils: How they work, Why they work, When they work.
Tunnel boring machines from six feet in diameter to nearly 60 feet in diameter are constructing road, train, water,and utility tunnels in urban environments all over the U.S. Most of these tunnels are in soils – from silts, sands and clays to gravels, cobbles and weathered rock. This lunch and learn will provide an overview of these amazing machines including the challenges they must overcome in water-saturated soils, how they excavate under hundreds to thousands of critical buildings without damaging them, how they assemble 100-year design life concrete lining as they go, and why they are so successful.
Mike is a Professor of Civil Engineering and the Grewcock Chair in Underground Construction & Tunneling at Colorado School of Mines. He teaches the sophomore level Infrastructure Engineering course in fall and Tunnel Design and Construction in Soft Ground in the spring. Mike and his students pursue research on all things TBMs in soils, and is involved in real-live tunneling projects in New York city, Seattle, Washington D.C., and Los Angeles. Mike, his wife and three kids live happily on a farm in Golden.